I recently read a fantasy novel by a 30-something kid who writes like a literate (for a seventh-grader) junior high school student. Irritating. He’s apparently a self-inflicted victim of the Dunning-Kruger Effect, from the evidence of the kinds of glaring errors he makes that would have been easily avoided had he done his homework.
*sigh*
Example: horses and horseback riding are featured throughout the book (and from what I have seen in preview material, the next book in the series as well, where the snippet I saw mentioned horses braying *shudder*). One would think that if horses and riding horses were significant elements of a novel, then the writer would at least casually pick up a copy of Horse and Rider or maybe even stroll on down to a stable to get a wee tad of realism to use. Oh, wait! Talk to a real person with experience with horses! Nah. Too hard.
Nope. Instead, Every. Single. Thing. Wrong. Completely stupid. Way to massacre any chance of suspension of disbelief, doofus.